(1)(2)___toprovidefoodforhim,his(3),forexample,divideupthebestterritoryintheorderof“e,first(4)____.”Thelatearrivalsmayacquire(5)___territories,butlessfoodisavailable,ortheyaretooclosetothe(6)(7)____overterritory,monlyuseforce,ora(8)_____offorce,,(9)____,thatanimalsseemtousethe(10)(11)____ofthoseanimalswhicharecapableofdoingeachotherharm,thereisa(12),the(13)(especiallybirds),whichcan(14)____escapefromconflictseemtohaveno(15)____againstkilling,andequallynomechanismfor(16),iftwodovesare(17)____inacage,andtheystartfighting,(18)____ofpeaceand,(19)____itsnaturalhabitat,“peace”mechanismdoesnot(20)
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